Helium Threshold Cherenkov pression setting and efficiency

Maximum gas pression as a function of the beam momentum to select different particles:

Beam Test 2006 > He Threshold Cherenkov > MaxHePresVsMomentum.gif

6 meter long Cherenkov efficiency as a function of pressure @ 10 GeV/c beam momentum:

Beam Test 2006 > He Threshold Cherenkov > Cer6mHe10.gif

6 meter long Cherenkov efficiency as a function of pressure @ 20 GeV/c beam momentum:

Beam Test 2006 > He Threshold Cherenkov > Cer6mHe20.gif

__________________________________________________________________________________________

6 meter long Cherenkov efficiency as a function of the beam momentum to select different particles:

Beam Test 2006 > He Threshold Cherenkov > HeEffVsMomentum.gif